00291nam a2200109Ia 450000500170000000800410001705000200005810000210007824500330009925000090013226000400014120251229191034.0251229s9999    xx            000 0 und d  aQR 41 .C37 1977  aCarpenter, P. L. 0aMicrobiologycP. L Carpenter  a4th.  aLondonb W B saunders companyc1977